46251391 has 4 divisors (see below), whose sum is σ = 46297800. Its totient is φ = 46204984.

The previous prime is 46251389. The next prime is 46251409. The reversal of 46251391 is 19315264.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 46251391 - 2¹ = 46251389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46251371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21676 + ... + 23713.

It is an arithmetic number, because the mean of its divisors is an integer number (11574450).

Almost surely, 2^46251391 is an apocalyptic number.

46251391 is a deficient number, since it is larger than the sum of its proper divisors (46409).

46251391 is a wasteful number, since it uses less digits than its factorization.

46251391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46408.

The product of its digits is 6480, while the sum is 31.

The square root of 46251391 is about 6800.8375219527. The cubic root of 46251391 is about 358.9563161492.

The spelling of 46251391 in words is "forty-six million, two hundred fifty-one thousand, three hundred ninety-one".